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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHideyuki Hashi, Taizo Hamada, Toshio Makabe, Kiyokazu Toma, Tatsuaki Ishida, Yasuaki Ban, Keizo Miyata
Estimating the term…
A magnetic transfer method which superposes on a magnetic disk surface a magnetic pattern from a master disk (2), said master disc having on its surface a magnetic film formed so as to have an array pattern shape corresponding to a preset data signal, magnetized into the magnetic film of the master disk (2). The master disc is used to magnetically transfer the array pattern of the data signal onto the magnetic disk as the magnetized pattern of the data signal. The method characterized comprises steps of contacting and separating, to and from a dummy disk (1) the magnetic film-formed surface of the master disk (2) to thereby clean the master disk (2), and a step of superposing, after the cleaning, the master disk (2) on the magnetic disk for effectuating the magnetic transfer.
A method of manufacturing magnetic recording medium for magnetic transferring a prestored pattern of data signal from a magnetic film on a surface of a master disc to a surface of an unformatted magnetic disc, said method comprising the steps of:
A method of manufacturing magnetic recording medium for magnetic transferring a pattern of data signal from a master disc to a magnetic disc as a magnetized pattern of the data signal, by overlapping said master disc on a surface of said magnetic disc, and by magnetizing a magnetic film on said master disc, said master disc having said magnetic film formed thereon in a shape of the pattern corresponding to a predetermined data signal,
Dependencies are inferred from the claim text.